593
FNUS28 KWNS 122201
FWDD38

Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0459 PM CDT Sat Jul 12 2025

Valid 141200Z - 201200Z

...Days 3-5/Monday-Wednesday...
A mid-level trough descending southeastward from British Columbia
will bring increasing fire weather concerns to portions of the
Northwestern U.S. and Great Basin early next week. Accelerating
winds ahead a strong cold front, low daytime relative humidity and
dry fuels will increase wildfire spread potential across the
Columbia Basin and Snake River Plain on Day 3/Monday, with overall
fire weather threat shifting into the Great Basin by Day 4/Tuesday.
The resulting back door cold front and north-northeast pressure
gradient could also bring a period of weak offshore flow to the
coastal ranges of OR Day 4-5/Tuesday-Wednesday, but some lingering
model uncertainty in wind magnitude precludes introduction of
critical probabilities at this time. Farther east, wetting rains and
cooler temperatures associated with the trough and cold front should
mitigate fire weather concerns across much of Montana Day 4/Tuesday.


...Day 6-8/Thursday-Saturday...
A mid-level low near Baja California along with a general rebuilding
of the ridge across the Western U.S. could aid in ushering in deeper
monsoon moisture into portions of the Southwest and Great Basin for
the latter portion of the week. Considerable ensemble spread in
moisture plume evolution limits confidence in isolating dry
thunderstorm threat for now.

..Williams.. 07/12/2025

...Please see www.spc.noaa.gov/fire for graphic product...

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